4311123140440 has 32 divisors (see below), whose sum is σ = 9770830195680. Its totient is φ = 1711862033152.

The previous prime is 4311123140341. The next prime is 4311123140453. The reversal of 4311123140440 is 440413211134.

It is a junction number, because it is equal to n+sod(n) for n = 4311123140399 and 4311123140408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393345172 + ... + 393356131.

It is an arithmetic number, because the mean of its divisors is an integer number (305338443615).

Almost surely, 2^{4311123140440} is an apocalyptic number.

4311123140440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4311123140440 is an abundant number, since it is smaller than the sum of its proper divisors (5459707055240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4311123140440 is a wasteful number, since it uses less digits than its factorization.

4311123140440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786701451 (or 786701447 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 4311123140440 its reverse (440413211134), we get a palindrome (4751536351574).

The spelling of 4311123140440 in words is "four trillion, three hundred eleven billion, one hundred twenty-three million, one hundred forty thousand, four hundred forty".